Used to point to SUMO (http://www.ontologyportal.org/SUMO.owl#). This property corresponds to the original MonolingualExternalRef element with @externalSystem='SUMO & relType='at'
Used to point to SUMO (http://www.ontologyportal.org/SUMO.owl#). This property corresponds to the original MonolingualExternalRef element with @externalSystem='SUMO & relType='at'